Condenser.



PATENTBD NOV. 21, 1905.

P. O. KEILHOLTZ.

CONDENSER.

APPLICATION FILED JUNE 5, 1905.

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(team PIERRE O. KEILHOLTZ, OF BALTIMORE, MARYLAND.

CONDENSER.

' are. 805,141.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed June 5, 1905. Serial No. 263,751.

To all whom it may concern:

Be it known that I, PIERRE O. KEILHoL'rz, a citizen of the United States, residing at Baltimore, in the State of Maryland, have in vented certain new and useful Improvements in Condensers, of which the following is a specification.

This invention relates to an improvement in steam-condensers, and has for its object to improve the construction and operation of the barometric-tube condenser by providing a contraction in the walls of the discharge-pipe leading from the condensing-chamber, so as to cause an accumulation of water in said chamber and to convert the static pressure due to the head of water into an increased velocity at the contraction, and then to connect the air-pipe, which has heretofore been operated by a pump, with the water-discharge pipe at such contraction.

The invention is illustrated in the accompanying drawing, which is a vertical section of a condenser with my improvement.

The particular condenser here shown is the well-known Worthington condenser.

The numeral 1 designates the condensingchamber. The water-supply pipe 2 enters the condensing-chamber below and extends upwardly to the center of said chamber. At the upper end this pipe has a laterally-projecting or annular flange 3 with adownturned edge 4, which forms a hood. Above thehood is an inverted-cone-shaped deflector 5, which coacts in spreading and distributing the water that issues from the supply-pipe. Below the hood is an air space or chamber 6. An outlet-pipe 7 extends from the air-space below the hood, across the condensing-chamber and through the wall, to the exterior of the latter. On the exterior this pipe has a connection 8, which extends downwardly and terminates in an annular chamber 9 around the water-discharge pipe 12 and below the condensingchamber, as will presently be fully described.

The condensing-chamber has a large upper portion and tapers downward and has a discharge-nozzle 11, which carries at its lower end the annular air-chamber 9, into which the connection from the air-pipe 7 enters. The greatest contraction in the water-discharge occurs at this point.

Beneath the nozzle 11 is the discharge-pipe 12, which leads to the hot-well. This pipe is provided with a flange 13 at its upper contracted end, which confronts the annular chamber 9 in the lower contracted end of the nozzle. The joinder of this discharge-pipe with the contracted end of the nozzle is such as to provide for the annular chamber a circular discharge-groove 14 at the lower edge of said nozzle for the escape of air or gas from the annular chamber 9 into the discharge-pipe 12. The upper end of the discharge-pipe 12 is contracted to the same diameter as the lower end of the nozzle, and then below said end the pipe increases in diameter until it assumes its greatest diameter at 15. It will thus be seen that the water-discharge passage from the condensing-chamber through the tapered nozzle and into the discharge-pipe first gradually contracts until it reaches the throat at the lower end of the nozzle, where the passage is of the smallest diameter, (or the contraction greatest.) Then as it advances said passage increases in diameter until it has its greatest diameter. By means of this contraction the passage is so choked that the water will accumulate in the condensing-chamber to approximately the line or level 16 and the static pressure due to the head of water thus accumulated above the contraction is converted into a velocity which has its maximum at the contraction, and the static pressure at this point is therefore reduced to zero. Now by producing a proper opening into the passage at the contraction the difference of pres sure there as compared with the pressure under the hood in the condensing-chamber will cause air to be drawn through the pipe 7 8 to the annular chamber 9 and carried down thedischarge-pipe .by the condensing water into the hot-well.

By this invention the air is exhausted from the chamber 6 without the use of an air-pump, as heretofore.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

' 1. The combination of a steam-condensing c iamber whose upper portion is largest and whose lower walls are tapered to form a water-discharge nozzle; a water-discharging pipe joined to the discharge end of the said cham' her, which pipe below the joinder is contracted and below the contraction is enlarged to the full size; a pipe for the transmission of air or gases leading from the large upper part of the condensing-chamber.and tapping into said contracted part of the water-discharge pipe; a water-supply pipe connected with the lower part of said chamber and opening upward therein; and a steam-inlet in the upper part of said chamber, whereby in operation there will alwaysbe an accumulation or head of water in the lower or tapered part of the chamber.

2. The combination of a steam-condensing chamber; a water-supply pipe opening in said chamber; a hood in said chamber at the end of said water-supply pipe; at water-discharge pipe leading from said chamber and having a contractionwhich causes water to accumulate and form a head in the chamber and whereby the moving water has the greatest velocity in said contraction; an annular passage around said contraction and having openings from the passage into the contracted part of the pipe, and an air-pipe leading from under the said hood to said annular passage.

3. In a condenser the combination of a steam-condensing chamber; a steam-inlet entering at the top of the chamber; a watersupply pipe having its end within the chamber opening upward and said end surrounded by a downturned hood below which an airspace is formed; a water-discharge pipe at the bottom of said chamber and having a contracted portion and enlarged below said contraction; and an exterior pipe whose upper end enters the chamber and connects with said air-space below the hood and extends on the outside of the condenser and has its lower end connected at the smallest part of said contracted portion of the water-discharge pipe. In testimony whereof I affix my signature in presence of two witnesses.

PIERRE O. KEILHOLTZ. \Vitnesses:

CHAS. B. MANN, G. FERDINAND Voc'r. 

